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美国科研人员培育出了一种能够抵抗真菌枯萎病的美国栗树树种,真菌枯萎病曾经在20世纪早期导致大批栗树死亡。然而,美国普度大学的林学专家
American researchers have bred a family of American chestnut trees that are resistant to fungal blight, which led to the death of a large number of chestnut trees in the early 20th century. However, a forestry expert at Purdue University in the United States